Yealink IP phones in Kenya: T31P, T33G, W73P and headsets

A Yealink IP phone is hardware. It has a screen, a handset and a network port, and it does nothing until it is registered to a phone number with a SIP username and password. Yealink sells phones; it does not sell a Kenyan number or call minutes. There are two routes: register the phone to a Sautikit number with a SIP username and password, or skip the handset and have SautiDesk agents answer in the browser with a headset.

The Yealink models, from Yealink’s own pages

Every figure below is from Yealink’s own product pages and datasheets, read on 10 November 2026. Yealink publishes no price on any of them. The pages say the phones are sold to business customers through authorised partners and ask the reader to contact Yealink, so what a handset costs in Kenya is set by whoever sells it.

Both desk phones list local 5-way conferencing, a stand with two adjustable angles, wall mounting and support for wireless headsets through an EHS adapter. The T31P datasheet lists Opus and G.722 wideband codecs and UDP among its transports. The T33G page lists Yealink HD Voice.

Which model suits an office or a call centre

The number of SIP accounts is the number of separate lines a phone can register. A reception desk with one business number needs one account. A phone with two accounts can hold two numbers, for example a main line and a sales line, and the T33G holds up to four. Each account on a Sautikit number is its own device with its own username and password, so a phone with more accounts is one handset registered to several of your numbers.

• One desk, one number: the T31P’s 2 accounts cover a main line and a second line.
• A desk that answers several numbers: the T33G, with up to 4 accounts and Gigabit ports.
• Staff who walk around a floor or warehouse: the W73P system, which registers up to 10 handsets on up to 10 SIP accounts, with up to 6 repeaters to widen the coverage.
• A call centre with a ticket for every call: a handset only places and takes calls. The history, the ticket and the WhatsApp thread of the customer are not on it, which is why SautiDesk agents use a browser instead.

Yealink headsets

Yealink’s UH36 is a wired USB headset, sold as UH36 Mono for one ear and UH36 Dual for both. Its datasheet lists USB-A and USB-C plugs, a 3.5 mm jack for PCs and smartphones, a noise-canceling microphone and a boom arm that bends through 330 degrees. On a Yealink desk phone it connects through the YHC20 controller that comes in the box. The T31P and T33G pages list support for wireless headsets through an EHS adapter. Yealink publishes no price for the UH36 either.

The same headset works on a computer. Yealink lists the UH36 as connecting to a PC by USB or 3.5 mm jack, which is what a SautiDesk agent needs: the agent signs in at a computer, plugs the headset in and answers in the browser.

Put a Kenyan number on a Yealink phone

A Yealink phone registers to a Sautikit number the same way any SIP phone does. Sautikit’s server is sip.sautikit.com, the port is 5080 and the transport is UDP. Sautikit’s phone guides cover Grandstream phones, MicroSIP and Zoiper; there is no Yealink screen-by-screen guide, so the Yealink field names below come from Yealink’s own quick start guide, and the values come from the Sautikit guide for connecting a desk phone, which applies to any phone with a server field and a password field.

1. Claim a number on sautikit.com. It is KES 500 a month with no set-up fee. Open Numbers, pick the number, go to SIP & Devices and click + Add device. Label it, for example “Reception T31P”.
2. Copy the generated username and password. If you close the window first, click SIP setup on the device’s row to see them again.
3. On the phone, press the OK key while it is idle to show its IP address (Yealink’s quick start guide). Type that address into a browser on the same network and sign in.
4. Go to Account, then Register, and choose the account line.
5. Fill in the fields from the table below and save.
6. Check Register Status on the same page. It shows the registration state of the account.
7. Test: call your own mobile from the phone, then call the Sautikit number from your mobile and confirm the Yealink rings.

Yealink’s own page gives 5060 as the default port, and Sautikit listens on 5080, so the port is the field to change. Menus differ a little between Yealink models and firmware versions, so use your model’s own quick start guide for the exact screen.

Common faults, from the Sautikit guides

These are the faults Sautikit’s own guides already document for desk phones, and they apply to a Yealink in the same way.

• The phone never registers. Check the port is 5080, not 5060, and the transport is UDP. Check the phone has internet access from the network it is plugged into. See the Grandstream phone guide and the SIP trunk guide.
• Registration is refused with an authentication error. The password was mistyped or copied with a space. Copy it again from SIP setup and make sure both the user name and the register name are the generated username, not the phone number.
• It worked, then another phone stopped registering. Each credential belongs to one device. Two phones on one username take the registration from each other. Add a separate device for each phone.
• Calls connect but there is no audio. Some office routers rewrite SIP traffic, a feature usually called SIP ALG. Turn it off in the router and restart the phone.
• Adding a device fails. Each number has a device limit, shown on the SIP & Devices tab. Remove a device you no longer use.

Skip the handset: SautiDesk agents answer in the browser

SautiDesk agents do not use desk phones. They sign in from the browser, or from the Android app on Google Play, put on a headset and answer the business number there, and a call rings the next free agent. Desk phones connect to a Sautikit number, and SautiDesk agents use the browser or the app. The product page for call centre software says it plainly: there are no desk phones, servers or cables.

What a handset cannot show is what SautiDesk puts on the same screen. Calls, WhatsApp, SMS, email and web chat become one ticket per customer, so the agent who picks up sees the customer’s history, and a missed call opens a ticket with an owner. SautiDesk Basic is KES 1,000 per person a month and SautiDesk Pro is KES 3,000; a business number is KES 500 a month. For five people on Basic that is KES 5,000 plus KES 500 for the number, with the headset as the only hardware.

The browser against desk phone comparison works through the cost and the day-to-day difference, and how to start a call centre in Kenya lists what a small team needs.

Keep your Yealink phones and add a Sautikit number

If you already own Yealink handsets or your team prefers a physical phone, a Sautikit number is the line for them: KES 500 a month, no set-up fee, incoming calls free, and outgoing calls at KES 3.00 a minute billed per second. Sautikit can also forward the number to several phones at once or one after another, with voicemail if nobody answers. Details are on sautikit.com.

Start on SautiDesk

1. Pick Basic at KES 1,000 per person a month, or Pro at KES 3,000 if you want reports, the live floor view and campaigns.
2. Add your people. Each person signs in from the browser, with a headset.
3. Choose a Kenyan number for calls and SMS at KES 500 a month.
4. Connect your WhatsApp Business number and your support email address.
5. Top up your balance by M-Pesa or card, then answer your first call in the browser.

Calls, WhatsApp, SMS, email and web chat are on both plans. See the full list on the pricing page.